Coating process: impact resistance test of paint film

Core tip: the impact resistance test of paint film is applicable to the impact strength test of paint film, that is, the product of the weight of hammer and its height falling on the sample without causing paint film damage and dispersion, in g.cm 1、 Testing materials and equipment for impact resistance of paint film Tinplate (about 50 × 120 × 0.2 ~ 0.3mm) 4X magnifier Film impact tester 2、 Determination method and steps: 1 Test conditions: 23 ± 2 ℃ and relative humidity (50 Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: the impact resistance test of paint film is applicable to the impact strength test of paint film, that is, the product of the weight of hammer and its height falling on the sample without causing paint film damage and dispersion, in g.cm 1、 Test material and equipment for impact resistance of paint film: Tinplate (about 50 × 120 × 0.2 ~ 0.3mm), four times magnifying glass paint film impact tester II Test method and steps: 1 Test conditions: it should be carried out at 23 ± 2 ℃ and relative humidity (50 ± 5)% 2 Place the paint film test piece flat on the drill anvil of the impact tester The distance between the impacted part and the edge of the test piece shall not be less than 15mm, and each impacted edge shall not be less than 15mm 3 Fix the heavy hammer on a certain height of the sliding cylinder (the height is specified or agreed by the product standard), press the control button to make the heavy hammer fall freely on the punch and impact the test piece 4 Lift the heavy hammer to take out the test piece, and observe whether the paint film has cracks and peeling phenomenon with a 4x magnifying glass 5 If the paint film breaks, reduce the weight height by 5cm, and repeat the test until there is no crack or peeling 6 Record the weight and height of the hammer 7 The same test plate shall be tested three times 3、 The evaluation method of impact resistance of paint film: observe the paint film without crack, wrinkle, peeling and other phenomena with 4 times magnifier, which is the impact resistance of the sample paint at a certain height The impact strength of the paint film is expressed by the product of the weight of the hammer and the maximum height of the hammer falling on the test piece without causing damage to the paint film (g · cm) Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,